One dead, two critical in western Sydney stabbing

One person has died and two people are in a critical condition following a stabbing in western Sydney.

Police were called to Merrylands Road in Merrylands just after 10am on Tuesday, with witnesses telling police a man had stabbed multiple people before leaving on foot.

Paramedics treated three people, however a man died at the scene. He is yet to be formally identified. Two others were taken to hospital in a critical condition.

A man was arrested after a brief manhunt on nearby Smythe Street, also in Merrylands. A crime scene has been established.